Apparatus for making roofing products



NQV. 27 W23 HAWSEQS c. E. RAHR ET M.

AERKRATUS FOR MAKING ROOFING PRODUCTS Original Filed Pee. 15, 1919 3 Sheetss-Sheet 1 C. E. RAH ET AL ARBAEATUS FOR MAKING ROOFING PRODUCTS Nov. 27 1923 Original Filed Dec. 15, 1919 fi. E. RAHR ET AL ARPARATUS FOR MAKING ROOFING PRODUCTS 15 1919 j 3 Sheets-Sheet 5 Original]. File l Dec Patented Nov. 27, 1923.

rrro STATES CHESTER E. RAHR AND ROBERT T. POLLOCK, OF BOSTON, MASSACHUSETTS, ASSIGNORS TO THE FLINTKOTE COMPANY, OF BOSTON, MASSACHUSETTS, A CORPORATION OF MASSACHUSETTS:

APPARATUS FOR MAKING- JROOFING EPRDDUGTS.

(Original application filed December 15, 1919, Serial Ito. 344,894. Divided and this application nledNovember 5, 1920. Serial No. lfilflfitt.

To all whom it may concern:

Be it known that we, Cnns'rnn E. Rania and ROBERT 'll. PoLLoon, both citizens of the United States, residing in the cit of Boston, county of Suffolk, and State 0 Massachusetts, have invented certain new and useful Improvements in Apparatus for Making Roofing Products, of which the following is a specification.

This application is a division of an earlier applicationfilled by us for United States Letters Patent, Serial No. 344,89d, filled December 15, 1919.

Uur invention relates to the production of improved rooting shingles and relates more particularly to an apparatus for pro ducing roofing shingles which resemble roofing tile when laid.

Among its salient olojects are to provide an apparatus for making embossed paper or felt roofing material which has heen saturated or impregnated with asphaltum or other bituminous substance and which may or may not have a granular surfacing; to provide an apparatus for producing shingles which, when laid, have the appearance of tile or the like and make a very ornamental roof; to provide an apparatus tor making a shingle that can he more easily laid upon a root due to the shoulders formed by the embossed portions; to provide an apparatus for making shingles having ta ered cinbossments extending longitudinal y thereof, the higher portions being at the lower end of the shingle when laid, and tapering oil to very low shoulders at the upper end of the embossments, the lower shoulders furnishing abutments for the lower edges of the shingle above; to provide air-apparatus in general for making roofing shingles of the character referred to.

In the drawing:

Fig. 1 is a side view, partly in section, of apparatus for producing tapered bosses transversely of the sheet on its outer edges.

Fig. 2 is a plan view of apparatus shown in Fig. 1.,

Fig. 3 is a detail view of embossing rolls, parts of rolls broken away to show embossing dies.

Fig. 4c is a side elevation, partly in section, of the apparatus for producting tapered emhossed portions arranged longitudinally of the roofing sheet.

Fig. 5 is a plan view of apparatus shown in Fig. 4,

Fig. 6 is a detail of a portion of a roof laid with shingles produced by apparatus shown in Figs. 1 and 2, showing method of laying same.

Fig. 7 is a detail of a portion at a roof laid with shingles produced in apparatus shown in Figs. 4 and 5.

In the drawings, in Figs. l and 2 is shown the apparatus for producing the tapered boss upon the outer edges of the roofing sheet. The roofing sheet, 1, which may he of any desired material such as roofing felt saturated or impregnated with bituminous or other asphalt composition and which is either coated with granular surfacing or not, as desired, is fed between the embossing rolls 2 and 3 by means of any suitable power (not shown). The upper embossing roll 2 has upon its periphery, raised portions lwhich register with corresponding recesses 5 in the lower embossing roll 3. After passing throu h these embossing rolls the roofing sheet as formed 11 on its surface the emloossed portions 6. s the embossments and recesses are upon the outer edges of the rolls the embossments formed upon the sheet are in a corresponding position running transversely of the sheet and have their higher portions upon the outer edges. From the emoossing rolls the sheet travels in the direction of the arrow and is out longitudinally by means of the slitter 7. This slitter is mounted upon a shaft 8 and isdriven hy means of the chain 9 and sprockets 10 and ll from the embossing rolls, the sprocket 11 being mounted on the shaft 4P upon which the upper embossing roll is also lined. A bed roll i mounted on the shaft 7 beneath the slitter furnishes a. means for holding the roofing sheet in. position while it is being cut longitudinally by the slitter 7. After being slit longitudinally the roofing sheet passes beneath the two cutting rolls 12 and 13. The upper cutting roll has a blade 14 fixed to its surface and is so geared that it makes a complete revolution for each shingle length, thereby cutting the sheet uniformly. The blade 1d i base for the cutting blade.

:lpondmg registers with a recess 15 in the lower roll 13, the roll 13 also furnishinga solid cutting fter being thus cut transversely the shingles proceed from the machine by way of the chute 16 from which they may be collected by any convenient means. The cutting rolls, embossing rolls and slitter are all mounted upon any suitable frame (not shown) in the draw- -%Il Figs. 4 and 5 is shown the second apparatus for impressing the tapered embosses into the roofing sheet so that the embossments run'longitudinally of the sheet. The embossing rolls l7 and 18 are similarly arranged as those described previously, the difference being in these rolls that raised portion 19 on roll- 17 which registers with the recess 20 in roll 18 are arrang d transversely around-the surface of the roll and produce the tapered'emb'ossments longitudinally upon the roofing sheet.

The rolls are driven by any suitab 1e power by means of the gears 21 and 22 and travel in the direction of the arrows causing the rootin sheet to travel in a direction correto that shown in Fig. 1. The eet, after passing through the embossing rolls is cut longitudinally by a slitter 23' similar to that shown in Fig 1, in its details. The cutter, consisting of the cutting roll 24 and bedroll 25, is identical to that previously explained except that the cutting blades 26 are arranged at closer intervals and cut the sheet transversely into shorter lengths. The cutter in the second type of apparatus shown severs the sheet transversely at the highest portion of the tapered embossments which, when laid upon a roof, is the lower edge of the shingle. In the first apparatus explained, the outer edges of the roofin sheet are the lower edges of the shingle w en laid upon a roof while in the second apparatus the lower edge of the l the; shingles abut -upon the small upper" shingle is that part which is cut by transverse cutting blade. The embossing rolls, slitter and cutting rolls are similarly mounted and driven in the second aIpparatus as thoseexplained in the. first. n Fig. 6 is shown a ortion of the roof using the shingles pro 'uced by the first apparatus.

- It will be noted that the lower edges of shoulders ofthe tapered embossments. This 7 portion of. a-roof using type ofshingle is easily laid and makes 'a very attractive roof. In Fi 7 is showna the s ingles made in the second apparatus. the embossments are closed together and the Itwill be noted that be altered by the arrangement of the bosses on the embossing rolls and the cutting of the sheet.

We claim as our invention:

1. In an apparatus for making embossed roofing material, the combination with means for feeding the roofing material, of embossing rolls for producing tapered embossments along the lateral edges and a severing mechanism for cutting the roofing sheet into suitable units.

2. In an apparatus for making embossed roofing material, the combination with means for feeding a bituminous saturated roofing sheet with or without granular surfacing, of embossing rolls consisting of a lower bed roll havin tapered recesses arranged transversely of the sheet and on the outer edges thereof, a pressure roll with tapered embossments similarly arranged as on the bed roll and adapted to register therewith, means for feeding roofing sheet between the embossing rolls and means for cutting the roofing sheet into suitable units.

3. In an apparatus for making embossed roofing material, the combination with means for feeding the roofing material, saturated or impregnated with bituminous composition and with or without granular surfacing, of embossing rolls consisting of a lower bed roll having tapered recesses arranged transversely thereof and extending to the ends of the roll, the deepest embossment being created at the outer ed es of the sheet, a pressure roll with tapere embossments similarly arranged as on the bed roll and adapted to register therewith, means for feedin a roofing sheet between the embossing ro s producing the embossments transversely of the sheet and means for cutting the roofing sheet into suitable uni-ts.

4. In an apparatus for making embossed roofing the combination with means for feeding a bituminous saturated roofing sheet, of embossing rolls consisting of a Lower bed roll having a plurality of tapered recesses therein positioned longitudinally of the sheet, a ressure roll having tapered'embossments a apted to register with the recesses of the lower roll, the embossments impressed into the traveling sheet having their highest portions uniformly arranged relative the sheet, and means for longitudinally slitting and transversely cutting the sheet into suitable units.

' CHESTER E. RAHR.

ROBERT T. POLLOCK. 

